chore(commit): add commitlint and husky

for conventional commits https://www.conventionalcommits.org

ISSUE #348

.huskyrc

@@ -0,0 +1,3 @@
+"hooks": {
+  "commit-msg": "commitlint -E HUSKY_GIT_PARAMS"
+}

commitlint.config.js

@@ -0,0 +1,6 @@
+module.exports = {
+  rules: {
+    'scope-empty': [2, 'never']
+  },
+  extends: ['@commitlint/config-conventional']
+};

package.json

@@ -21,6 +21,8 @@
     "@babel/preset-env": "^7.2.3",
     "@babel/preset-react": "^7.0.0",
     "@chainapsis/cosmosjs": "git+https://github.com/litvintech/cosmosjs-dist.git",
+    "@commitlint/cli": "^11.0.0",
+    "@commitlint/config-conventional": "^11.0.0",
     "axios": "^0.19.0",
     "babel-eslint": "^10.0.1",
     "babel-loader": "^8.0.5",
@@ -36,6 +38,7 @@
     "file-loader": "^2.0.0",
     "history": "^4.9.0",
     "html-webpack-plugin": "^3.2.0",
+    "husky": "^4.3.8",
     "mini-css-extract-plugin": "^0.8.0",
     "ncp": "^2.0.0",
     "prettier": "^2.0.5",